How can i make 'redo' & 'undo'?

[jamesobutler (James Butler)]

Your previous post has the how-to for undo/redo for markups fiducial nodes. If something is still not working for you I recommend that you continue the discussion over there with what you tried and what you expected to happen.

Custom Undo/Redo develop

Operating system: window 11 Slicer version: slicer 5.2.1 Q1. After searching various materials, it was said that the undo/redo function for all nodes drawn in the scene is difficult to implement. Is this true? Q2. If so, I want to create a redo and undo function for a specific node (markupFiducial, Closedcurved). # Enable undo for the scene slicer.mrmlScene.SetUndoOn() # Enable undo for markups fiducial nodes defaultMarkupsNode = slicer.mrmlScene.GetDefaultNodeByClass("vtkMRMLMarkupsFiduc…